Looking for the best arm cylinder seals? We offer durable, leak-proof seals designed for easy installation and a perfect fit, ensuring your machinery runs smoothly and reliably.
Arm cylinder seals keep your machinery running smoothly. Leak-proof performance saves time and money. Durable materials handle tough jobs without fail.
Easy installation means less downtime. Exact-fit kits match Bobcat, Komatsu, and CASE models. Trusted designs meet or beat OEM standards.
Every seal kit here is built for real-world toughness. Users praise their long-lasting reliability and hassle-free fixes. Whether you’re fixing leaks or upgrading parts, these seals deliver confidence in every drop of hydraulic power. Ready to find the perfect match for your machine? Let’s dive in.
List of Top 10 Arm Cylinder Seals
| Image | Title | Best For | Price |
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Solarhome Arm Cylinder Seal Kit 7162062 Compatible With Bobcat 331 331E 334 430 |
This Arm Cylinder Seal Kit 7162062 is perfect for Bobcat 331, 331E, 334, 430 owners or technicians fixing leaks. It includes the right 1 1/2″ rod and 2 3/4″ bore for quick, reliable repairs. |
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RONGPAS Arm Cylinder Seal Kit 7162062 compatible with Bobcat Excavator 331 331E 334 430 |
This RONGPAS Arm Cylinder Seal Kit is perfect for Bobcat Excavator owners who need a reliable replacement part. It’s compatible with models 331, 331E, 334, and 430, making it a great choice for keeping your machine running smoothly. |
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SUMMEX 707-99-85350 Arm Cylinder Seal Kit For Komatsu PC2000-8 Excavator Parts 6 Month Warranty |
This seal kit is perfect for Komatsu PC2000-8 excavator owners or mechanics needing a reliable, OE-standard replacement. It ensures easy installation, durability, and a 6-month warranty for stress-free use. |
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707-98-35310 Excavator Arm Cylinder Seal Kit Made for Komatsu PC78MR-6 PC78US-6 |
This seal kit is perfect for Komatsu PC78MR-6 and PC78US-6 excavator owners needing durable replacements. It fits 60mm rod and 100mm bore cylinders, meets OEM specs, and works as a reliable aftermarket upgrade. |
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6588079 New Excavator Arm Cylinder Seal Kit Fits Bobcat X-331 Rod 1 3/4″ |
This seal kit is perfect for Bobcat X-331 operators needing a durable rod 1 3/4” and bore 3” replacement. It’s an aftermarket part made to meet OEM specs, but confirm fit before ordering. |
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1543291C1 Arm Dipper Stick Cylinder Seal Kit Fits Case 680L |
This seal kit is perfect for anyone who needs to fix a Case 680L backhoe loader. It’s easy to use and meets high standards. |
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6810719 Arm Cylinder Seal Kit fits Bobcat 331 331E 334 |
Ideal for construction and agriculture professionals using Bobcat 331, 331E, or 334 equipment. This durable, easy-to-install seal kit ensures reliable performance in tough conditions while supporting American-made quality. |
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ARM Cylinder Seal KIT, Compatible with CASE CX330 CX350, Lz00478 Lz00484, Replacement Part (Lz00478) |
This ARM Cylinder Seal Kit is perfect for mechanics or equipment technicians fixing CASE CX330 CX350 excavators. It replaces Lz00478 Lz00484 parts fast, sealing leaks and restoring performance. |
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3 Pack Hydraulic Seal Installation Tools, Hydraulic Cylinder Piston Repair Seal Kit, U-Cup Rod Seal Installation Tool Kits Upgraded Seal Twistor Install Tool Set |
This product is perfect for mechanics, technicians, or DIYers working on hydraulic cylinders, automotive systems, marine equipment, or heavy machinery. Its 3-size compatibility (0.87″-6.49″ rods) and easy-twist design make seal installation quick, safe, and hassle-free, saving time and effort. |
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7161331 Replacement Seal Kit – Arm Cylinder Fits Bobcat Excavators E35i E35Z E42 |
This seal kit is perfect for Bobcat excavator owners who need to replace worn-out arm cylinder seals. It’s easy to install and fits multiple models, saving you time and hassle. |
Detailed Reviews
Top Arm Cylinder Seals are expert-vetted and customer-approved for peak performance. Each kit is thoroughly reviewed to ensure durability, easy installation, and exact fit for models like Bobcat, Komatsu, and CASE. Built to last, these seals prevent leaks and keep hydraulics running smoothly under tough conditions. Confidently choose your perfect match with our clear, no-hassle guide—100% satisfaction guaranteed.
1. Solarhome Arm Cylinder Seal Kit 7162062 Compatible With Bobcat 331 331E 334 430

The Solarhome Arm Cylinder Seal Kit is a reliable replacement for your equipment. It’s compatible with Bobcat models 331, 331E, 334, and 430. This kit ensures smooth and efficient operation.
The part number 7162062 matches original specifications. It includes a rod seal (1 1/2″) and bore seal (2 3/4″).
This kit is easy to install and built to last. It helps prevent leaks and extends the life of your cylinder.
| Pros | Cons |
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Perfect For:
This Arm Cylinder Seal Kit 7162062 is perfect for Bobcat 331, 331E, 334, 430 owners or technicians fixing leaks. It includes the right 1 1/2″ rod and 2 3/4″ bore for quick, reliable repairs.
Ready to Purchase?
2. RONGPAS Arm Cylinder Seal Kit 7162062 compatible with Bobcat Excavator 331 331E 334 430

This seal kit fits Bobcat Excavator models 331, 331E, 334, and 430. It has part number 7162062. Use it to fix or replace old arm cylinder parts.
The kit is new aftermarket and built for durability. It ensures a tight, leak-free seal in your excavator’s arm cylinder.
Need help? Contact us anytime. We reply fast. Thank you for trusting our product!
| Pros | Cons |
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Perfect For:
This RONGPAS Arm Cylinder Seal Kit is perfect for Bobcat Excavator owners who need a reliable replacement part. It’s compatible with models 331, 331E, 334, and 430, making it a great choice for keeping your machine running smoothly.
Ready to Purchase?
3. SUMMEX 707-99-85350 Arm Cylinder Seal Kit For Komatsu PC2000-8 Excavator Parts 6 Month Warranty

The SUMMEX 707-99-85350 Arm Cylinder Seal Kit fits Komatsu PC2000-8 excavators. It comes with a 6-month warranty for reliability. Always check the OE number, model, and brand before buying.
This kit meets OE standards for easy installation and strong performance. Need help? Get a reply within 24 hours.
| Pros | Cons |
|---|---|
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Perfect For:
This seal kit is perfect for Komatsu PC2000-8 excavator owners or mechanics needing a reliable, OE-standard replacement. It ensures easy installation, durability, and a 6-month warranty for stress-free use.
Ready to Purchase?
4. 707-98-35310 Excavator Arm Cylinder Seal Kit Made for Komatsu PC78MR-6 PC78US-6

This 707-98-35310 excavator arm cylinder seal kit fits Komatsu PC78MR-6 and PC78US-6 models. It has a 60 mm rod and 100 mm bore. Use it to fix leaks and boost performance.
OEM numbers are for reference. Always check your machine before ordering. Some images may not match the actual product.
Aftermarket part meets or exceeds OEM standards. OEM part numbers are for identification only.
| Pros | Cons |
|---|---|
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Perfect For:
This seal kit is perfect for Komatsu PC78MR-6 and PC78US-6 excavator owners needing durable replacements. It fits 60mm rod and 100mm bore cylinders, meets OEM specs, and works as a reliable aftermarket upgrade.
Ready to Purchase?
5. 6588079 New Excavator Arm Cylinder Seal Kit Fits Bobcat X-331 Rod 1 3/4″

This seal kit fits Bobcat X-331 excavator arm cylinders with a 1 3/4″ rod and 3″ bore. It ensures strong sealing performance for hydraulic systems.
OEM numbers are for reference only. Always verify fit before buying. The aftermarket design meets OEM specs for reliability. Note that stock images may not match the actual product.
| Pros | Cons |
|---|---|
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Perfect For:
This seal kit is perfect for Bobcat X-331 operators needing a durable rod 1 3/4” and bore 3” replacement. It’s an aftermarket part made to meet OEM specs, but confirm fit before ordering.
Ready to Purchase?
6. 1543291C1 Arm Dipper Stick Cylinder Seal Kit Fits Case 680L

This Replacement Seal Kit fits Case 680L Backhoe Loader dipper arm cylinders. It includes 2-piece seals for reliable performance.
The kit is aftermarket, built to OEM standards for durability. Parts are tested to match specs and ensure proper function. Always confirm fit with your machine’s details before use.
Seals help prevent leaks and maintain cylinder pressure. Stock images may not show exact product design. Verify part numbers to avoid mismatches. This kit offers a cost-effective fix for worn or damaged seals.
| Pros | Cons |
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Perfect For:
This seal kit is perfect for anyone who needs to fix a Case 680L backhoe loader. It’s easy to use and meets high standards.
Ready to Purchase?
7. 6810719 Arm Cylinder Seal Kit fits Bobcat 331 331E 334

This Arm Cylinder Seal Kit replaces part number 6810719. It fits Bobcat 331, 331E, and 334 models.
Made in the USA, this kit supports local jobs and communities. It’s built to last in tough conditions like construction and farming. Quality meets or beats original equipment standards.
Installation is quick and simple. Fewer delays keep your machine running. Reliable performance ensures long-term use.
| Pros | Cons |
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Perfect For:
Ideal for construction and agriculture professionals using Bobcat 331, 331E, or 334 equipment. This durable, easy-to-install seal kit ensures reliable performance in tough conditions while supporting American-made quality.
Ready to Purchase?
8. ARM Cylinder Seal KIT, Compatible with CASE CX330 CX350, Lz00478 Lz00484, Replacement Part (Lz00478)

This ARM Cylinder Seal KIT fits CASE CX330 CX350 models. It replaces parts Lz00478 Lz00484.
The kit ensures smooth cylinder function. It stops leaks and boosts performance. Durable seals make repairs easy and long-lasting.
| Pros | Cons |
|---|---|
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Perfect For:
This ARM Cylinder Seal Kit is perfect for mechanics or equipment technicians fixing CASE CX330 CX350 excavators. It replaces Lz00478 Lz00484 parts fast, sealing leaks and restoring performance.
Ready to Purchase?
9. 3 Pack Hydraulic Seal Installation Tools, Hydraulic Cylinder Piston Repair Seal Kit, U-Cup Rod Seal Installation Tool Kits Upgraded Seal Twistor Install Tool Set

The 3 Pack Hydraulic Seal Installation Tools is a must-have kit for anyone working with hydraulic cylinders. It includes three sizes to fit most rod seal jobs, making it universally compatible. This tool set is designed for efficiency, helping you install seals quickly and safely.
With its upgraded design, the tools feature comfortable rubber handles and well-polished edges for smooth operation. The different colors make it easy to identify the right size for your task. This kit is expertly made to protect both the seal and cylinder during installation.
It’s widely used for automotive, marine, and heavy machinery repairs. 100% satisfaction guaranteed with a 30-day money-back and 12-month warranty. Simple, reliable, and built to last.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for mechanics, technicians, or DIYers working on hydraulic cylinders, automotive systems, marine equipment, or heavy machinery. Its 3-size compatibility (0.87″-6.49″ rods) and easy-twist design make seal installation quick, safe, and hassle-free, saving time and effort.
Ready to Purchase?
10. 7161331 Replacement Seal Kit – Arm Cylinder Fits Bobcat Excavators E35i E35Z E42

This seal kit replaces arm cylinder parts on Bobcat excavators. It fits models E27, E32, E34, E35, E35i, E35Z, E37, E42, and E45. Key parts include Seal BP, Seal Rod, Wiper Rod, Piston Nut, and O Rings.
Each kit ensures a tight, durable seal for smooth cylinder operation. Check your serial number to confirm compatibility before buying.
Designed for heavy-duty use, this kit boosts equipment lifespan. It’s a cost-effective fix for worn or damaged seals. Always verify fit using Bobcat’s Online Parts Catalog.
| Pros | Cons |
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Perfect For:
This seal kit is perfect for Bobcat excavator owners who need to replace worn-out arm cylinder seals. It’s easy to install and fits multiple models, saving you time and hassle.
Ready to Purchase?
Buying Guide
Arm cylinder seals keep your machinery smooth and reliable. They stop leaks, cut downtime, and last long in tough jobs.
- Compatibility: Match kits to your machine’s brand and model. Bobcat, Komatsu, or CASE? Check part numbers to avoid mismatches.
- Material Quality: Durable seals handle heavy use without cracking. Look for leak-proof, wear-resistant designs.
- Installation Ease: Choose kits that install fast with no extra tools. Less downtime means quicker returns to work.
- OEM Standards: Kits that meet or beat original specs ensure trusted performance. Ignore vague “universal” claims.
- Part Number Accuracy: Verify the kit’s part number against your machine’s manual. Even similar models may differ.
- Warranty: A 6-month or longer warranty shows confidence in quality. Avoid kits with no support or returns.
- Included Tools: Some kits add seal installation tools for hassle-free fixes. They save time and prevent damage.
Users praise kits that fit right, last years, and stop leaks for good. Start with your machine’s specs, then pick a kit that ticks all the boxes.